Results 31 to 40 of about 13,135 (216)

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Biomechanical investigation of long spinal fusion models using three-dimensional finite element analysis

BMC Musculoskeletal Disorders, 2023
Background This study represents the first finite element (FE) analysis of long-instrumented spinal fusion from the thoracic vertebrae to the pelvis in the context of adult spinal deformity (ASD) with osteoporosis.
Norihiro Oku, Satoru Demura, Daisuke Tawara, Satoshi Kato, Kazuya Shinmura, Noriaki Yokogawa, Noritaka Yonezawa, Takaki Shimizu, Ryo Kitagawa, Makoto Handa, Annen Ryohei, Hiroyuki Tsuchiya   +11 more
doaj   +1 more source

A computational and experimental assessment of the pipeline stress state under bending load and internal pressure

Известия высших учебных заведений: Нефть и газ, 2021
Main pipelines are subjected to a complex of loads during operation. Monitoring of the stress state of the pipeline wall is necessary for performing strength calculations and evaluating the pipeline reliability.The article is devoted to the method of ...
A. A. Ignatik
doaj   +1 more source

Multimodal Soft Surgical Robots Enabled by Eco‐Degradable, Sterilizable Polymers and Transient Electronics

Advanced Functional Materials, EarlyView.
A compostable PGS soft surgical robot with interchangeable modules integrates transient Mo tactile and Si thermal sensors for dual feedback. The device preserves its function after clinical‐grade sterilization, demonstrates stable actuation and cardiac tissue grasping with real‐time in vivo pulsatile monitoring, and biodegrades post‐use with soil‐safe, 
Minseong Chae, Kyung‐Sub Kim, Gyeong‐Seok Hwang, Jun‐Seok Shim, Sung‐Woo Kim, Yong‐Wu Kim, Jieun Han, Jae‐Young Bae, Jae‐Hwan Lee, Minjung Chae, Jooik Jeon, Joo‐Hyeon Park, You‐Jung Park, Ju‐Yong Lee, Sung‐Geun Choi, Min‐Ha Oh, Yong‐Joong Shin, Young‐In Ryu, Ji‐Woo Gu, Seong‐Yu Choi, Jeong‐Yun Sun, Jung Keun Hyun, Myoung‐Ryul Ok, Sang Yup Kim, Edyta Wyszkowska, Ju‐Young Kim, Kang‐Sik Lee, Seung‐Kyun Kang   +27 more
wiley   +1 more source

Three-dimensional finite element analysis of the biomechanical behaviour of different dental implants under immediate loading during three masticatory cycles

Heliyon
The study aimed to evaluate the impact of varying modulus of elasticity (MOE) values of dental implants on the deformation and von Mises stress distribution in implant systems and peri-implant bone tissues under dynamic cyclic loading.
Feng Yang, Dianbin Liu, Wenjie Yin, Changyong Yuan, Yiming Hu, Jiaqi Xu, Yunfan Yang, Jianteng Tang, Jiang Chen   +8 more
doaj   +1 more source

Dental implant primary stability in different regions of the Jawbone: CBCT-based 3D finite element analysis

Saudi Dental Journal, 2020
Aim: This study aimed to analyze the primary stability of dental implant in maxillary and mandibular anterior and posterior regions using a finite element analysis.
Razan Alaqeely, Nadir Babay, Montaser AlQutub   +2 more
doaj   +1 more source

Stress Rupture Life Prediction Method for Notched Specimens Based on Minimum Average Von Mises Equivalent Stress

Metals, 2021
Creep tests were carried out on notched plate specimens of nickel-based superalloy GH4169 with different stress concentration coefficients. It was found that the duration of the first stage of the creep curve increases with the increase of stress ...
Dawei Ji, Xianming Hu, Zuopeng Zhao, Xu Jia, Xuteng Hu, Yingdong Song   +5 more
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

A Pressure Microsensor Made of Parylene‐C for Use as Medical Implant

Advanced Materials Technologies, EarlyView.
A monolithic parylene‐C pressure sensor with gold strain gauges provides 6.2 μV$\mu{\rm V}$·mmHg$\cdot{\rm mmHg}$−1$^{-1}$ sensitivity. The morphology of a sputtered thin film strain sensor is granular/columnar, which results in a high gauge factor of 7.5. Thermal bonding and parylene‐C coating create a hermetic cavity.
Ann‐Kathrin Klein, Victor Krajka, Andreas Dietzel   +2 more
wiley   +1 more source

Buckling‐Driven Linearity in Flexible Capacitive Pressure Sensors Based on a Three‐Dimensional Dual‐Pore Polyurethane Structure

Advanced Materials Technologies, EarlyView.
A flexible pressure sensor utilizing a 3D dual‐pore polyurethane structure is developed to overcome the intrinsic trade‐off between sensitivity and linearity. By inducing sequential buckling through distinct pore sizes and shapes, the device achieves highly linear and sensitive responses across a wide pressure range.
Jae Yeong Jang, Jaemin Choi, Young Jung
wiley   +1 more source