Results 11 to 20 of about 3,932,887 (344)

High Strain Rate Properties of Various Forms of Ti6Al4V(ELI) Produced by Direct Metal Laser Sintering

Applied Sciences, 2021
For analysis of engineering structural materials to withstand harsh environmental conditions, accurate knowledge of properties such as flow stress and failure over conditions of high strain rate and temperature plays an essential role. Such properties of
Amos Muiruri, Maina Maringa, Willie du Preez   +2 more
doaj   +1 more source

Numerical Study about the Influence of Superimposed Hydrostatic Pressure on Shear Damage Mechanism in Sheet Metals

Metals, 2021
It is generally accepted that the superimposed hydrostatic pressure increases fracture strain in sheet metal and mode of fracture changes with applying pressure.
Mohammadmehdi Shahzamanian, Chris Thomsen, Amir Partovi, Zhutian Xu, Peidong Wu   +4 more
doaj   +1 more source

Machine Learning for Predicting Fracture Strain in Sheet Metal Forming

Metals, 2022
Machine learning models are built to predict the strain values for which edge cracking occurs in hole expansion tests. The samples from this test play the role of sheet metal components to be manufactured, in which edge cracking often occurs associated ...
Armando E. Marques, Mario A. Dib, Ali Khalfallah, Martinho S. Soares, Marta C. Oliveira, José V. Fernandes, Bernardete M. Ribeiro, Pedro A. Prates   +7 more
doaj   +1 more source

Experimental determination of the plastic deformation and fracture behavior of polypropylene composites under various strain rates

Polymer Testing, 2021
A strain measurement method is proposed that defines an intrinsic flow stress equation for various strain rates using representative brittle and ductile polypropylene composites.
Minsoo Kim, Tae Yun Park, Seokmoo Hong
doaj   +1 more source

Fracture healing monitored with strain gauges [PDF]

Acta Orthopaedica Scandinavica, 1992
We measured healing in 7 cases of surgical neck fracture of the humerus by applying a strain gauge measuring bar between the external fixation pins. Repeated measurements provided a healing curve for the individual cases. The gradual decrease in deflection of the fracture zone reached a plateau of about 50 percent after 2 to 4 weeks in 6 cases. Removal
B, Kristiansen, A, Borgwardt
openaire   +3 more sources

Effect of Stress-Relieving Heat Treatment on the High Strain Rate Dynamic Compressive Properties of Additively Manufactured Ti6Al4V (ELI)

Metals, 2020
A study was undertaken on the compressive high strain rate properties and deformation behaviour of Direct Metal Laser-Sintered (DMLS) Ti6Al4V (ELI) parts in two separate forms: as-built (AB) and stress relieved (SR).
Amos Muiruri, Maina Maringa, Willie du Preez, Leonard Masu   +3 more
doaj   +1 more source

Evolution and analysis of gas sorption-induced coal fracture strain data

Petroleum Science, 2020
Although coal swelling/shrinking during coal seam gas extraction has been studied for decades, its impacts on the evolution of permeability are still not well understood. This has long been recognized, but no satisfactory solutions have been found.
Zhanghao Liu, Jishan Liu, Pengzhi Pan, D. Elsworth, M. Wei, R. Shi   +5 more
semanticscholar   +1 more source

Evaluation of impact ductile fracture behaviour of low carbon austenitic stainless steel SUS304L using damage mechanics model [PDF]

EPJ Web of Conferences, 2021
To clarify the applicability of the Gurson-Tvergaard-Needleman (GTN) model for impact ductile fracture behaviour, SHB test was reproduced by finite element analysis (FEA).
Takazawa Hidekazu, Yashirodai Kenji, Yamada Hiroyuki, Ogasawara Nagahisa, Kumagai Tomohisa   +4 more
doaj   +1 more source

Plastic pre-compression and creep damage effects on the fracture toughness behaviour of Type 316H stainless steel [PDF]

, 2014
The influence of inelastic damage in the form of plastic pre-strain and creep damage, on fracture toughness of Type 316H stainless steel has been examined.
Davies, C. M., Dean, David W., Mehmanparast, Ali, Nikbin, Kamran   +3 more
core   +1 more source

Spall And Dynamic Yielding Of Aluminum And Aluminum Alloys At Strain Rates Of 3X10(6) S(-1) [PDF]

, 2009
We have explored the role that grain size, impurity particles and alloying in aluminum play in dynamic yielding and spall fracture at tensile strain rates of similar to 3x10(6) We achieved these strain rates shocking the aluminum specimens via laser ...
Bernstein, A. C., Dalton, D. A., Ditmire, T., Edens, A., Geissel, M., Pedrazas, N. A., Quevedo, H. J., Rambo, P., Schwarz, J., Sherek, P. A., Smith, I. C., Taleff, E. M., Worthington, D. L.   +12 more
core   +1 more source