Influence of strain rate sensitivity on localization and void coalescence [PDF]
International Journal of Plasticity, 2020 The onset of macroscopic strain localization limits the ductility of many ductile materials. For porous ductile materials, two distinct mechanisms of macroscopic localization have been identified: void growth induced softening and void coalescence. In this work we focus on analyzing the influence of material's strain rate sensitivity (SRS) on the two ...
Javier Reboul +3 more
openaire +4 more sources
Modeling strain rate sensitivity and high temperature deformation of Mg-3Al-1Zn alloy
Journal of Magnesium and Alloys, 2019 Increasing the plastic deformation temperature of Mg alloys results in higher strain rate sensitivity, easier activation of secondary slip modes, and impeded twinning. In this study, the strain rate sensitivity is estimated for each deformation mode, and
Adrien Chapuis, Qing Liu
doaj +2 more sources
Strain Rate Sensitivity of Polycarbonate and Thermoplastic Polyurethane for Various 3D Printing Temperatures and Layer Heights. [PDF]
Polymers (Basel), 2021 In this work, strain rate sensitivity was studied for 3D-printed polycarbonate (PC) and thermoplastic polyurethane (TPU) materials. Specimens were fabricated through fused filament fabrication (FFF) additive manufacturing (AM) technology and were tested ...
Vidakis N +6 more
europepmc +2 more sources
Strain-rate sensitivity of high-entropy alloys and its significance in deformation
Materials Research Letters, 2019 Strain-rate dependence in face centered cubic high entropy alloys still remains controversial despite extensive efforts on this topic. Strain-rate sensitivity reflects underlying thermally-activated deformation and the controversy boils down to the ...
Jongun Moon +5 more
doaj +2 more sources
On the Strain Rate Sensitivity of Fused Filament Fabrication (FFF) Processed PLA, ABS, PETG, PA6, and PP Thermoplastic Polymers. [PDF]
Polymers (Basel), 2020 In this study, the strain rate sensitivity of five different thermoplastic polymers processed via Fused Filament Fabrication (FFF) Additive Manufacturing (AM) is reported. Namely, Polylactic Acid (PLA), Acrylonitrile-Butadiene-Styrene (ABS), Polyethylene
Vidakis N +5 more
europepmc +2 more sources
Thermo-Mechanical Behavior and Strain Rate Sensitivity of 3D-Printed Polylactic Acid (PLA) below Glass Transition Temperature (Tg). [PDF]
Polymers (Basel)This study investigated the thermomechanical behavior of 4D-printed polylactic acid (PLA), focusing on its response to varying temperatures and strain rates in a wide range below the glass transition temperature (Tg). The material was characterized using
Slavković V +4 more
europepmc +2 more sources
, 2021 Ultrafine-grained materials display almost no strain hardening, an enhanced strain rate sensitivity and grain boundary offsets during plastic deformation. It is expected that dislocation climb is active in order to enable prompt recovery.
R. Figueiredo, T. Langdon
semanticscholar +1 more source
Strain Rate Sensitivity of the Additive Manufacturing Material Scalmalloy®
Journal of Dynamic Behavior of Materials, 2021 This work investigates the influence of strain rate on the stress/strain behaviour of Scalmalloy. This material is an aluminium–scandium–magnesium alloy, specifically developed for additive manufacturing.
Puneeth Jakkula +5 more
semanticscholar +1 more source
Advanced Nanoindentation Testing for Studying Strain-Rate Sensitivity and Activation Volume. [PDF]
JOM (1989), 2017 Nanoindentation became a versatile tool for testing local mechanical properties beyond hardness and modulus. By adapting standard nanoindentation test methods, simple protocols capable of probing thermally activated deformation processes can be ...
Maier-Kiener V, Durst K.
europepmc +2 more sources
Plastic deformation behavior and constitutive modeling of Cu-50Ta alloy during hot compression
Materials Research Express, 2022 This paper presents a study on plastic deformation behavior of Cu–50Ta alloy at temperatures of 286–473 K and strain-rate of 0.01–6200 s ^−1 . The effects of temperature, strain-rate, and strain on the yield strength, flow stress, and strain-rate ...
Bo Pu +4 more
doaj +1 more source