CSWP-Simulation: Certified SOLIDWORKS Professional — Simulation

In SOLIDWORKS Simulation, a linear static study assumes which of the following about the relationship between applied loads and the resulting response?

• ALoad and response are linearly proportional, with small displacements and material remain…
• BLoad and response are governed by a time-dependent equation of motion
• CStiffness changes continuously as the load is applied
• DMaterial yields and the analysis tracks plastic flow

In SOLIDWORKS Simulation, what does the von Mises stress represent and why is it used to assess yielding in ductile metals?

• AThe largest principal stress acting at a point
• BA scalar equivalent stress derived from the stress tensor that is compared to the yield s…
• CThe hydrostatic (volumetric) component of the stress tensor
• DThe shear stress on the plane of maximum shear

A SOLIDWORKS Simulation static study reports a Factor of Safety (FoS) plot showing a minimum value of 0.8. What does this indicate?

• AThe model is twice as strong as required at that location
• BThe mesh has failed to converge in that region
• CThe model is predicted to fail because the stress exceeds the chosen failure limit at tha…
• DThe model has a rigid body mode that must be restrained

In SOLIDWORKS Simulation, which factor-of-safety criterion is the recommended default for assessing yielding in ductile materials such as steel and aluminum?

• AMaximum Normal Stress (Coulomb-Mohr brittle)
• BMohr-Coulomb Stress
• CMaximum Shear Stress with a multiplier of 2.0
• DMaximum von Mises Stress (distortion energy)

When meshing a model in SOLIDWORKS Simulation with high-quality (second-order) solid elements, how many nodes does each tetrahedral element contain?

• A10 nodes (4 corner plus 6 mid-side)
• B4 nodes (corners only)
• C8 nodes (corners only)
• D20 nodes

In a SOLIDWORKS Simulation mesh convergence study, why does peak stress at a stress concentration typically converge more slowly than displacement as the mesh is refined?

• ADisplacement is calculated after stress, so it inherits accumulated error
• BStress is derived from displacement gradients (derivatives), so it needs a finer mesh to…
• CStress uses linear elements while displacement uses parabolic elements
• DThe solver caps the number of stress iterations but not displacement iterations

Which adaptive method in SOLIDWORKS Simulation automatically refines the mesh by reducing element size in regions of high strain-energy error?

• Ap-adaptive method
• BCurvature-based mesh only
• Ch-adaptive method
• DMesh control by component

The p-adaptive method in SOLIDWORKS Simulation improves accuracy by doing what to the mesh elements?

• ASplitting each element into smaller elements
• BConverting tetrahedral elements into hexahedral elements
• CMerging adjacent elements to reduce solve time
• DIncreasing the polynomial order of the element shape functions while keeping element size…

In SOLIDWORKS Simulation, which mesh quality metric measures the ratio of the longest to shortest characteristic dimension of an element, with values near 1.0 being ideal?

• AAspect ratio
• BJacobian ratio
• CElement order
• DMesh density

A SOLIDWORKS Simulation static study of an unconstrained part fails with a message about insufficient fixtures or rigid body motion. What is the underlying cause?

• AThe mesh contains too many high-quality elements
• BThe model is not adequately restrained, so the stiffness matrix is singular and cannot be…
• CThe applied load magnitude exceeds the material yield strength
• DContact sets were defined as bonded instead of no penetration

Which SOLIDWORKS Simulation contact condition glues two touching faces together so they behave as if bonded, transferring both tension and compression across the interface?

• ANo Penetration contact
• BAllow Penetration contact
• CBonded contact
• DFree (no contact)

A No Penetration contact set is used between two parts in a SOLIDWORKS Simulation static study. Why does adding this contact make the analysis nonlinear in nature even within a 'static' study?

• AIt automatically switches the material model to plastic
• BIt forces the use of p-adaptive meshing
• CIt applies a time-varying load history
• DThe contact area and load path change as the parts touch and separate, so the solution mu…

Which SOLIDWORKS Simulation connector represents a fastener that joins two components, can be preloaded with an axial force, and can be checked against tensile and shear strength after solving?

• ABolt connector
• BSpring connector
• CRigid connector
• DEdge weld connector

In SOLIDWORKS Simulation, a pin connector is used to join two cylindrical faces. Which option allows the connected parts to rotate relative to each other about the pin axis?

• AApply a fixed geometry fixture to both faces
• BLeave the 'No rotation' option unchecked
• CSet the pin as a rigid connector
• DBond the cylindrical faces

When a thin-walled sheet-metal part is analyzed in SOLIDWORKS Simulation, which element type best captures the bending and membrane behavior efficiently?

• ASolid tetrahedral elements only
• BBeam elements
• CShell elements
• DTruss elements

A frequency (modal) analysis of an unconstrained part in SOLIDWORKS Simulation reports the first six natural frequencies as approximately zero. What do these zero-frequency modes represent?

• ASix structural resonances that will cause failure
• BNumerical errors that indicate a corrupt mesh
• CBuckling modes from compressive loading
• DSix rigid body modes: three translations and three rotations

In a SOLIDWORKS Simulation frequency study, what does a mode shape describe?

• AThe relative deformed pattern the structure takes when vibrating at a given natural frequ…
• BThe absolute displacement magnitude under a static load
• CThe temperature distribution at steady state
• DThe factor of safety distribution across the model

How does adding a tensile (stiffening) load before running a frequency analysis in SOLIDWORKS Simulation typically affect the natural frequencies of a structure?

• AIt lowers the natural frequencies because tension reduces stiffness
• BIt raises the natural frequencies because tension increases effective stiffness
• CIt has no effect because frequency depends only on mass
• DIt eliminates the rigid body modes

In a SOLIDWORKS Simulation buckling study, a computed Buckling Load Factor (BLF) of 2.5 means which of the following?

• AThe part has already buckled under the current load
• BThe applied load is 2.5 times the yield strength
• CBuckling is predicted to occur when the applied load is multiplied by 2.5
• DThe mesh must be refined by a factor of 2.5

A slender column is analyzed in SOLIDWORKS Simulation under an axial compressive load. A linear static study shows stresses well below yield, yet the real column collapses. Which analysis correctly captures this failure mode?

• AA finer static mesh, which will reveal the missing stress
• BA thermal study, which accounts for the heat generated
• CA frequency study, which finds the resonant collapse
• DBuckling analysis, which predicts instability before the material yields

In SOLIDWORKS Simulation thermal analysis, heat transfer by conduction is solved directly within solids. How are convection and radiation handled?

• AAs thermal boundary conditions applied to faces
• BAs internal volumetric loads on every element
• CAs fixtures that restrain temperature gradients
• DAs contact sets between solid bodies

What is the difference between a steady-state and a transient thermal study in SOLIDWORKS Simulation?

• ASteady-state is nonlinear while transient is always linear
• BSteady-state ignores time and finds the equilibrium temperature; transient computes tempe…
• CSteady-state requires radiation while transient requires only conduction
• DSteady-state uses shell elements and transient uses solid elements

To perform a thermal stress analysis in SOLIDWORKS Simulation, what is the correct workflow?

• AApply a force load equal to the thermal expansion in a buckling study
• BRun a frequency study and read the thermal mode shapes
• CRun a thermal study, then import its temperature results as a load in a static study with…
• DDefine radiation on all faces in a single static study

Which material property in SOLIDWORKS Simulation is required for a static study but NOT needed for a steady-state thermal-only study?

• AThermal conductivity
• BMass density for transient runs
• CSpecific heat for transient runs
• DElastic modulus (Young's modulus)

An isotropic linear-elastic material in SOLIDWORKS Simulation is fully defined for a static study by which minimum set of properties?

• AElastic modulus and Poisson's ratio
• BYield strength and ultimate strength only
• CThermal conductivity and specific heat
• DMass density and damping ratio

In SOLIDWORKS Simulation, applying a fixed geometry restraint to a face removes how many degrees of freedom at each node on that face for a solid mesh?

• ASix degrees of freedom (three translations and three rotations)
• BThree translational degrees of freedom
• COne degree of freedom along the surface normal
• DZero, because solid nodes have no degrees of freedom

A symmetric part is loaded symmetrically. To reduce model size in SOLIDWORKS Simulation, you model half the part and apply a symmetry fixture on the cut face. What does this symmetry restraint enforce on a solid mesh?

• AFull fixed geometry on the cut face
• BZero stress on the cut face
• CZero displacement normal to the cut plane while allowing in-plane motion
• DFree rotation about the cut plane normal

In SOLIDWORKS Simulation, what is the difference between applying a force versus a pressure to a face?

• AA force acts only normal to the face, while a pressure can act in any direction
• BA force requires a thermal study, while pressure requires a static study
• CA force is applied per node, while a pressure is applied per element
• DA force is a total load distributed over the face, while a pressure is a load per unit ar…

When you apply a 'Remote Load/Mass' in SOLIDWORKS Simulation using the 'Rigid connection' option, what is the effect on the connected face?

• AThe face is connected rigidly to the remote point, transmitting load without locally defo…
• BThe face is meshed with shell elements automatically
• CThe face temperature is fixed to the remote point value
• DThe face is bonded to all touching components

Which SOLIDWORKS Simulation feature applies a centrifugal body load representing a spinning component?

• AA pressure applied to the outer cylindrical face
• BCentrifugal force defined by angular velocity (and optional angular acceleration)
• CA bonded contact set on the rotating face
• DA pin connector with no rotation

A SOLIDWORKS Simulation result shows extremely high stress at a sharp re-entrant corner that keeps increasing every time the mesh is refined. What is the most likely cause?

• AAn incorrectly defined material model
• BA bonded contact error
• CA stress singularity created by the idealized sharp corner geometry
• DA unit conversion mistake in the load

In SOLIDWORKS Simulation, what does the 'Jacobian ratio' (Jacobian check) measure for a high-quality element?

• AThe number of nodes per element
• BThe ratio of element stiffness to global stiffness
• CThe thermal conductivity within the element
• DThe level of distortion of the curved (parabolic) element from an ideal shape

Beam elements in SOLIDWORKS Simulation are most appropriate for which type of geometry?

• ALong, slender structural members such as weldment frames
• BThin-walled curved sheet metal panels
• CBulky solid blocks with low aspect ratios
• DLarge flat plates loaded in bending

A draft-quality mesh uses first-order tetrahedral elements. Compared with high-quality second-order elements, what is the key limitation of draft-quality elements?

• AThey cannot be used in thermal studies
• BTheir straight edges and linear displacement field give less accurate stress on curved ge…
• CThey require far more memory to solve
• DThey automatically apply bonded contact

In SOLIDWORKS Simulation, applying 'Mesh Control' to a fillet or hole does what?

• AGlobally coarsens the entire mesh
• BSwitches the study from static to thermal
• CLocally reduces element size to better capture high stress gradients there
• DConverts solid elements to beam elements

Which solver type in SOLIDWORKS Simulation is generally more efficient for very large models with many degrees of freedom and significant memory demand?

• AThe FFEPlus iterative solver only
• BThe frequency solver
• CThe thermal transient solver
• DThe Intel Direct Sparse / Large Problem Direct Sparse solver

In SOLIDWORKS Simulation, what does the URES (resultant displacement) plot show?

• AThe magnitude of the total displacement vector at each node
• BThe von Mises stress at each node
• CThe reaction force at the fixtures
• DThe temperature gradient across the model

After solving a static study in SOLIDWORKS Simulation, you want to verify equilibrium. Which tool reports the total reaction force at a fixture so you can compare it with the applied load?

• AProbe on the stress plot
• BResult Force (reaction force) tool
• CIso Clipping
• DSection Clipping

In SOLIDWORKS Simulation, the stress 'node values' and 'element values' plots can differ. Why are node-value (averaged) stresses usually smoother?

• ANode values are computed with a finer internal mesh
• BElement values include thermal effects while node values do not
• CNode values average the stresses contributed by all elements sharing a node, smoothing di…
• DNode values use the direct solver while element values use the iterative solver

A static study reports a maximum von Mises stress of 250 MPa, and the material yield strength is 350 MPa. What is the factor of safety against yielding at that location?

• A0.71
• B600
• C100
• D1.4

Hooke's law for a uniaxial linear-elastic bar relates stress and strain by which equation?

• AStress = Elastic modulus times strain
• BStress = strain divided by Poisson's ratio
• CStress = force times area
• DStress = strain times density

Poisson's ratio in a SOLIDWORKS Simulation material definition describes which physical behavior?

• AThe ratio of stress to strain along the load axis
• BThe ratio of lateral (transverse) strain to axial strain under uniaxial loading
• CThe temperature rise per unit stress
• DThe ratio of shear stress to normal stress

An orthotropic material model in SOLIDWORKS Simulation differs from an isotropic model because it has what property?

• AIdentical properties in every direction
• BNo defined elastic modulus
• CDirection-dependent elastic properties along three mutually perpendicular axes
• DProperties that only depend on temperature

The coefficient of thermal expansion (CTE) defined in a SOLIDWORKS Simulation material is required to compute which result?

• ANatural frequencies in a free vibration study
• BBuckling load factor under mechanical load
• CReaction forces in a purely mechanical static study
• DThermal stress and strain from temperature changes

In SOLIDWORKS Simulation, what is the role of the shear modulus (G) for an isotropic material, and how is it related to E and Poisson's ratio?

• AG = E / (2(1 + Poisson's ratio)); it relates shear stress to shear strain and is derived,…
• BG must be entered independently and is unrelated to E
• CG equals the elastic modulus E for all metals
• DG is only used in thermal studies

In a SOLIDWORKS Simulation static study, you apply a load using multiple load steps and check that displacement scales linearly with load. If displacement does NOT scale linearly, which assumption has been violated?

• AConservation of mass
• BLinearity, indicating large displacements, contact, or material nonlinearity is present
• CThe symmetry boundary condition
• DThe Stefan-Boltzmann radiation law

Saint-Venant's principle, relevant when interpreting SOLIDWORKS Simulation results, states what about local load application?

• AStresses are always highest far from the load
• BLocal loads have no effect anywhere in the model
• CStresses caused by a load's local distribution even out at distances comparable to the lo…
• DStress is uniform everywhere regardless of load type