On the basis of the modes,causes and statistical analysis of fracture failure of carbon steel 40 for the vehicle shaft, this paper compares basic mechanical properties of carbon steel 40 with those of carbon steel 50. Moreover,this paper proposes some advice on safe using of carbon steel 40 and 50 for the vehicle shaft.
Bone microstructure may play an important role in these processes by diverting and arresting propagating microcracks and so prevent fracture failure.
The gel-like viscoelasticity can be connected with the spinnability of "cohesive fracture failure", and the Maxwell-like and polymer-like viscoelasticities are concerned with the spinnability of "ductile failure".
To enable the numerical scheme to work models predicting the onset of fracture failure and draw-in failure are required.
The numerical scheme is formulated as an optimization problem whose objective is to maximize the drawability, subject to the constraint that fracture failure and draw-in failure do not occur.
The area of general yielding or fracture failure was obviously unchanged, as this is bounded by the cyclic yield stress of the material.