For this purpose, the results of a semi-solid tensile test conducted in situ using X-ray microtomography are compared with the predictions of a coupled hydromechanical granular model in order to both validate the predictions of the model and explain the experimental observations.
In contrary to normal solids, dynamic tensile or spall strength decreases with increasing impact velocities, owing to compression-induced predamage before subsequent tensile loading.
The problem is of significant interest to the industry as the usual filter measures undertaken (e.g., liners and gravel packs) to prevent solids production (tensile failure) are not only very expensive but also they reduce productivity due to inevitable plugging of the pores in such filters.
Indeed, when a solid fractures under tensile loading, FW traces and Wallner lines would have very similar shapes because of the straight crack front and the close velocities of the two source waves28.
The goal of this paper is to investigate the influence of the fracture energy of the solid on the tensile fracture strength and the strain to fracture in quasi-brittle two-dimensional foams using a microstructural model.
When solidification shrinkage and thermal contraction of the semisolid and its surrounding solid are obstructed, tensile deformation can be induced in the semisolid to cause cracking along grain boundaries that are not fed with sufficient liquid.
Alloying with Si, Mn and Ni led predominantly to pronounced solid solution strengthening, reaching tensile strength (UTS) values up to 1100 MPa after quenching.
Thus, despite the decreased contribution of solid solution strengthening, the tensile properties of the introduced lean alloy at room temperature are found to be comparable to that of the well-studied five component FeMnNiCoCr system.
Oluokun (1991) proposed the relationship between compressive strength and tensile strength solid line in Fig. 9b); however, it was obtained through regression analysis of measurements of undamaged concrete samples, and the relationship for fire-damaged concrete samples has not been reported yet.
The objective of the flexural test was to evaluate the possibility of applying the donut-type voided slab as a two-way slab by comparing the resulting the load distribution, crack patterns, load-bearing capacity, flexural stiffness, and deflection with those of a solid slab with same tensile reinforcement ratio and dimensions.
