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# The NAFEMS Glossary

A | B | C | D | E | F | G | H | I | J | K | L | M |

N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Terms A-C of the glossary can be found below

Click to access terms D-I of the glossary

Click to access terms J-M of the glossary

Click to access terms N-R of the glossary

Click to access terms S-Z of the glossary

# Terms A-C

**Accelerance**

**Acceleration**

**Adaptivity**

**Algebraic Eigenvalue Problem**

**Almansi Strain**

^{2}- dS0

^{2})/(2 dS

^{2}), where dS0 and dS are the undeformed and deformed lengths. See also Green’s Strain.

**Alternating Plasticity**

**Anisotropy**

**Arbitrary Lagrangian Eulerian Mesh Updating**

**Arc Length Method**

**Area Coordinates**

**Aspect Ratios**

**Assembly**

**Associative Plasticity**

**Augmented Lagrangian Method**

**Automatic Load/Time Incrementation**

**Automatic Mesh Generation**

**Automatic Node Renumbering Bandwith Profile Wavefront**

**Axisymmetric Element**

**Axisymmetric Thin Shell**

**Axisymmetrical Thick Shell**

**Axisymmetry**

**Bandwidth**

**Barlow Points**

**Basis Space**

**Bauschinger Effect**

**Beam Element**

**Bending**

**Bifurcation**

**Body Force Vector**

**Boundary Conditions**

**Boundary Element / Boundary Integral**

**Brittle Fracture**

**Bubble Functions**

**Buckling**

**Buckling (Snap Through)**

**Cam-Clay Model**

**Cauchy Stress**

**Cell**

**Central Difference Method**

**Characteristic Value**

**Characteristic Vector**

**Cholesky Factorisation (Skyline)**

**Closed-Form Displacement Method**

**Coefficient Of Viscous Damping**

**Column Vector (Column Matrix)**

**Compatibility Equations**

**Compatibility Of Strains**

**Complete Displacement Field**

**Complex Eigenvalues**

**Complex Eigenvectors**

**Composite Material**

**Compressible Flow**

**Condensation - Static Condensation / Modal Condensation**

**Condition Number**

**Conditional Stability Unconditional Stability**

**Conduction**

**Congruent Transformation**

**Conjugate Gradient Method**

**Conservation Of Energy**

**Conservation Of Mass**

**Conservation Of Momentum**

**Conservative Load**

**Consistent Displacements And Forces**

**Consistent Tangent Stiffness Method**

**Constant Strain / Constant Stress**

**Constitutive Equation**

**Constitutive Relationships**

**Constrained Methods**

**Constraint Equations (Multi Point Constraints)**

**Constraints**

**Contact Elements/Gap Elements**

**Contact Instability**

**Contact Problems**

**Continuous Mass Models**

**Continuous Models**

**Continuum Region Element (CRE) Method**

**Contour Plotting**

**Convected Coordinate Formulation (Also Called Co-Rotational Formulation)**

**Convection**

**Convergence**

**Convergence Criterion**

**Convergence Requirements**

**Convolution Integral (Duhamel Integral)**

**Coordinate System**

**Corresponding Forces And Displacements**

**Coulomb Damping (Also Called Dry Friction Damping)**

**Coupled Problems**

**Crack Closure Work Methods**

**Crack Element (Crack Tip Element)**

**Crack Profile Or Front**

**Crack Propagation**

**Crack Propagation (Fracture Mechanics)**

**Crack Tip**

**Crack Tip Elements**

**Crack Tip Equations**

**Crack Tip Opening Displacement (Ctod)**

**Crank-Nicholson Scheme**

**Creep Laws**

**Creep Strain**

**Critical Damping**

**Critical Energy Release**

**Critical Values**

**Critically Damped System**

**Cyclic Loading**

**Cyclic Symmetry**