The deformation and failure mechanism of cylindrical shells square plate with pre-formed holes under blast loading were investigated numerically by employing the Ansys 17.0 Ls-Dyna 971. To calibrate numerical model, experiments plates circle modeled results have a good agreement experiment data. calibrated model was used to study subjected loading. structure response stress field changing proce...

In January 1980, during exceptional cyclonic rainfall, an atypical landslide, called déboulé, rapidly generated the permanent 700 m-long gully of Ravine de l’Eglise on inhabited plateau in Reunion Island (Indian Ocean). Retrieving initial conditions that led to this historical process is both challenging and necessary for understanding mechanism incision providing pointers improving risk mitiga...

This paper researches two key factors (angle and thickness) of a weak layer in relation to their influencing mechanism on slope stability. It puts forward the sliding surface angle and morphological model criteria for the control of rock slopes and realization of its failure mechanism. By comparing the Failure Modes and Safety Factors (Fs) obtained from numerical analysis, the influence pattern...

conclusions in comparison with road traffic accidents on city streets, trauma patients in rtas on roads out of the city have longer pre-hospital time intervals and more severe injuries; therefore this group needs more pre-hospital resuscitation interventions. results findings of this study showed that, 75% of rtas occurred on city streets (n = 1 251). motor-car accidents were the most frequent ...

This study examines how asymmetries of agential power in franchisor-franchisee relationships contribute to franchisee failure, and franchisees can negotiate mitigate failure. Based on a critical discourse analysis, the research findings establish that franchisor dominance during three core stages lifecycle – notably at pre-launch, inauguration operation phases influences Supporting theorization...

Failure analysis of fractured components provides some information about the causes and conditions of fracture. Fractography is an indispensable part of the failure analysis as it is usually the only means by which the failure mechanism can be established. By using fractography, some information such as component’s life, values of the stress intensity factor and the applied stress can be calcul...

This paper reviews recent studies concerning the evolution of the pre-failure damage in several common lithologies, subjected to differential compression, by using detailed acoustic emission (AE) data. The experimental results exhibit a damaging process characterized by three typical phases of microcracking activity: the primary, secondary, and nucleation phases, respectively. The primary phase...