Pierre Léger

TL;DR: In this article, a parametric study is presented on the influence of the mathematical modeling of viscous damping on seismic energy dissipation of multidegree-of-freedom (MDOF) structures.

TL;DR: In this paper, a frequency domain solution algorithm for the one-dimensional transient heat transfer problem in arch dam cross sections is presented. But the proposed algorithm is not suitable for the case where the temperature variations are specified at the upstream and downstream faces of the dam.

TL;DR: In this paper, a finite element method for seismic fracture analysis of concrete gravity dams is presented, based on the non-linear fracture behaviour of concrete, and the following features have been considered in the development of the model: (i) the strain softening of concrete due to microcracking; (ii) the rotation of the fracture band with the progressive evolution of micro-crack damage in finite elements; (iii) the conservation of fracture energy; (iv) strain-rate sensitivity of concrete fracture parameters; (v) the softening initiation criterion under biaxial

TL;DR: In this article, a coaxial rotating crack model (CRCM) and a fixed crack model with a variable shear resistance factor (FCM-VSRF) were used to study the two-dimensional static fracture behavior of plain concrete structures.

TL;DR: In this article, a crack model that couples the benefits of the damage mechanics approach and the extended finite element method (XFEM) is presented, and a crack-tracking technique is developed to propagate the crack path along a single row of finite elements as a function of the stress-based nonlocal method.