EK201
A basic assumption in shear friction method is that a crack will form at a potential failure plane where direct shear stresses are high or at actual planes of weakness […]
A basic assumption in shear friction method is that a crack will form at a potential failure plane where direct shear stresses are high or at actual planes of weakness […]
As the load on a ductile steel beam is increased, the stresses in the beam also increase, until the yield stress is reached. With further increases in the load, yielding […]
High local stress concentrations are not usually important in ductile materials under static loading situations, because the local yielding resulting form these concentrations causes a favorable redistribution of stress.
At low temperatures the energy absorbtion is low and initiation and propagation of brittle fractures are comparatively easy, while at high temperatures the energy absorbtion is high because of ductile […]
More serious are cracks which propagate at high speed in a brittle (or unstable) fashion, for which some of the internal elastic strain energy stored in steel is released and […]
Once initiated, the crack may propagate in a ductile (or stable) fashion for which the external forces must supply the energy required to tear the steel.
There are two main assumptions for first order plastic analysis: The structure is made of ductile material that can undergo large deformations beyond the elastic limit without fracture or buckling. […]