Articles techniques et présentations

Semiconductor companies are one of the major users of Finite Element Method simulations, trying to study manufacturing processes. A well-defined model can in fact guarantee significant savings of costs and time for the release to production of new technologies. The equilibrium between ... En savoir plus

Polydimethylsiloxane (PDMS) is a biocompatible material widely used in biomedical applications such as implantable sensors. A realistic modeling of PDMS in acoustic-mechanic simulation is useful especially for medical applications which use ultrasonic waves as interrogation source. ... En savoir plus

The high heat loads intrinsically associated with high-energy, high repetition rate laser systems require sophisticated thermal management analyses to minimise the impact of thermal effects on optical performance. Non-uniform heat deposition in optical elements can lead to the onset of ... En savoir plus

The advancement of battery technology plays a crucial role in achieving sustainable and electrified future with efficient energy storage. In recent years, all-solid-state lithium-ion batteries (ASSLIBs) have shown great potential, offering higher capacity, enhanced safety, and longer ... En savoir plus

In this paper, we report FEM studies of the effect of unwanted interfering structural vibrations on the performance of an underwater Acoustic Vector Sensor (AVS) performed in the COMSOL Multiphysics simulation tool. An AVS is a compact sensor that measures a four-dimensional vector ... En savoir plus

Introduction: Modeling biological structures is challenging due to their often complex anatomical geometries and material properties. Finite element studies of the femur, the largest and strongest bone in the human body, have focused on the femoral neck, since this is where fractures ... En savoir plus

Solid-state batteries have emerged as a viable alternative to traditional liquid-based lithium-ion batteries, offering improved cost efficiency, safety, and environmental impact. Chlorine-rich lithium argyrodite (Li6PS5Cl) has emerged as a promising solid-state electrolyte, presenting ... En savoir plus

We present a problem-adapted finite element model, which enables the design of a novel type of a highly miniaturized, electrostatic MEMS membrane pump, as well as the investigation and the optimization of its operation. The electro-mechanical actuation scheme constitutes a strongly ... En savoir plus

锂离子电池在便携式电子设备领域占据主导地位，并显著推动了电动汽车的商业化进程。当前全球研发重点集中于开发具有高能量密度、快速充放电能力、高功率输出、低成本及高安全性的电池系统。在材料选择中，机械强度的耐久性与长周期循环的结构完整性成为关键评价指标。锂离子电池内部存在显著的电化学-力学耦合行为，表现为大变形、塑性流动、裂纹扩展与疲劳等现象，进而引起电极剥离、孔隙闭合以及副反应加速等多种失效模式。其中，正极颗粒的破裂等力学-电化学退化机制是限制锂离子电池性能的主要因素之一，因此深入研究正极材料在多场耦合条件下的响应机制，对实现下一代高能量密度电池至关重要。 钴酸锂 ... En savoir plus

During the hot extrusion process, a cylindrical pre-heated billet is inserted into a container and is forced by a hydraulic press to flow through a shaped die in order to obtain, as final product, a profile with a constant cross-section (Fig.1). Aluminum extrudates have become prominent ... En savoir plus