Results 41 to 50 of about 1,171 (167)

Prediction of FLD using Abaqus and Gurson Model for Simple Flat Spacemen

International Journal of Engineering and Management Sciences, 2023
In the past century, in many industries, such as, metal forming industry, it has been important to predict ductile damage and fracture of metals under complex loadings.
Tatiane Domokos, Attila Baksa, Szabolcs Szávai   +2 more
doaj   +1 more source

Evaluating Testability of Permafrost Models Through Physical and Thermal Testing in Complex Mountain Terrain, Yukon, Canada

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Due to its subsurface nature, permafrost cannot be directly observed with the naked eye or optical remote sensing. Consequently, accurately describing its distribution and thermal state is challenging. This is especially true in vast, remote environments, where obtaining comprehensive field data is demanding or improbable.
Ria Nicholson, Philip P. Bonnaventure, Nick C. Noad, Madeleine C. Garibaldi, Rabecca Thiessen, Will Kochtitzky   +5 more
wiley   +1 more source

Size effect on the shear damage under low stress triaxiality in micro-scaled plastic deformation of metallic materials

Materials & Design, 2020
Micro-forming is one of the major micro-manufacturing methods with promising application potentials, in which the damage response and fracture behavior need to be insightfully addressed.
Jilai Wang, Chuanzheng Li, Yi Wan, Chengpeng Zhang, Jiaqi Ran, M.W. Fu   +5 more
doaj   +1 more source

Damage Investigation of the Preform Operations for the Production of Rings for Ring Rolling

steel research international, EarlyView.
Void evolution during the preforming operations of two industrial ring rolling process routes is investigated by combining metallographic characterization with a two‐scale finite element simulation approach. The results reveal that, despite differing initial void conditions, the preforming operations can be designed to effectively influence void ...
Laurenz Kluge, Johannes Weninger, André Hundertmark, Bastian Kettler, Heiko Manz, David Bailly, Junhe Lian   +6 more
wiley   +1 more source

Experimental determination and numerical simulation of material and damage behaviour of 3D printed polyamide 12 under quasi-static loading

Archives of Mechanics, 2019
In order to characterise the material and damage behaviour of additively manufactured polyamide 12 (PA12) under quasi-static load and to implement it in a numerical model, experiments under quasi-static load as well as microstructural investigations were
D. Schob, R. Roszak, I. Sagradov, H. Sparr, M. Ziegenhorn, A. Kupsch, F. Léonard, B.R. Müller, G. Bruno   +8 more
doaj   +1 more source

Activation of peripheral NOP receptors reduces periorbital mechanical allodynia evoked by CGRP in mice

British Journal of Pharmacology, EarlyView.
Background and Purpose Migraine is a neurovascular disorder largely mediated by calcitonin gene‐related peptide (CGRP). This study explores the role of the nociceptin/orphanin FQ (N/OFQ)–N/OFQ receptor (NOP) system in CGRP‐induced periorbital mechanical allodynia (PMA) in mice.
Chiara Sturaro, Pietro Pola, Michela Argentieri, Alessia Frezza, Matilde Marini, Francesco De Logu, Valentina Albanese, Marie Soukupova, Davide Malfacini, Nurulain T. Zaveri, Romina Nassini, Dane D. Jensen, Pierangelo Geppetti, Girolamo Calò, Chiara Ruzza   +14 more
wiley   +1 more source

Parametric study of the ductile damage by the Gurson–Tvergaard–Needleman model of structures in carbon steel A48-AP

Journal of Materials Research and Technology, 2015
This part of study is devoted to the numerical simulation of axisymmetric notched specimens in order to study the phenomenon of nucleation by Gurson–Tvergaard–Needleman model (GTN).
Abdelkader Slimane, Benattou Bouchouicha, Mohamed Benguediab, Sid-Ahmed Slimane   +3 more
doaj   +1 more source

Comparison of exercise training and repeated hot water immersion on vascular function in overweight older adults

Experimental Physiology, EarlyView.
Abstract Recent studies suggest that heat exposure may benefit cardiovascular health, but in overweight and obese older adults, the chronic effects of heat therapy on artery function are still uncertain. We aimed to compare the effects of 12 weeks (3×/week, 40 min) of aerobic exercise (EXE) to hot water immersion (HWI) and an inactive control group ...
Juliene G. Costa, Joao Carlos Locatelli, Kristanti W. Wigati, Louise H. Naylor, Helen Jones, Andrew Haynes, Daniel J. Green   +6 more
wiley   +1 more source

Numerical modelling of dynamic ductile fracture propagation in different lab-scale experiments using GTN damage model

Fracture and Structural Integrity, 2020
Initiation and propagation of ductile fractures are a major consideration during the design of high-pressure pipelines. Consequences of a pipeline failure can be catastrophic thus structural integrity must be ensured over several decades. Traditional lab-
Benoît Paermentier, Dimitri Debruyne, Reza Talemi   +2 more
doaj   +3 more sources

Study on the Influence of the Gurson–Tvergaard–Needleman Damage Model on the Fatigue Crack Growth Rate

Metals, 2021
The fatigue crack growth (FCG) process is usually accessed through the stress intensity factor range, ΔK, which has some limitations. The cumulative plastic strain at the crack tip has provided results in good agreement with the experimental observations.
Edmundo R. Sérgio, Fernando V. Antunes, Diogo M. Neto, Micael F. Borges   +3 more
doaj   +1 more source