Concept
Concentration de contrainte
Publications associées (32)
How to Make Elastomers Piezoelectric?
Piezoelectrics play a significant role in modern electronics and electric devices. Thermal or mechanical stress on such materials induces a change in polarization generating an electric response, which is the sole effect of why they are so interesting. How ...
WILEY2023The General Crack Component Model for reversed cyclic shear
A growing body of research has shown that reversed cyclic shear loading of reinforced concrete (RC) causes effects that are not accounted for in monotonic behavioral models. Notable among these effects are a reduction in shear strength and significant plas ...
2023Crack tip kinematics reveal the process zone structure in brittle fracture
John Martin Kolinski, Chenzhuo Li, Xinyue Wei
When brittle hydrogels fail, several mechanisms conspire to alter the state of stress near the tip of a crack, and it is challenging to identify which mechanism is dominant. In the fracture of brittle solids, a sufficient far-field stress results in the co ...
PERGAMON-ELSEVIER SCIENCE LTD2023Multi-scale characterization and modeling of notched strength and translaminar fracture in hybrid thin-ply composites based on different carbon fiber grades
Owing to their high specific stiffness and strength, Carbon Fiber Reinforced Composites (CFRP) are ideal candidates for the development of lightweight high-performance structures. Within this family, thin-ply composites allow for wider design freedom and p ...
EPFL2023Vibrational NDT with Under-sampled Data through Physics-informed Neural Networks
The vibrational response of solid materials and structural components is substantially governed by their mechanical and geometrical properties. Low-frequency vibrations and modal frequencies are sensitive to global geometrical deviations, while high-freque ...
2023On the behavior of uniaxial static stress loaded micro-scale fused silica beams at room temperature
Yves Bellouard, Christos Edouardos Athanasiou, Saood Ibni Nazir
The question of whether static stress in fused silica relaxes at room temperature is still under debate. Here, we report experimental data investigating the behavior of fused silica at room temperature when subjected to static tensile stress up to 2 GPa st ...
2022Experimental investigation of dowel action using advanced measurement techniques
Aurelio Muttoni, Marko Pejatovic
Existing shear-cracked structures need to be reliably verified in order to avoid redundant interventions. Code provisions often raise shear safety and/or fatigue life concerns of the reinforcement subjected to stress concentrations due to cyclic dowel acti ...
2022