Results 81 to 90 of about 3,932,887 (344)

Fracture Prediction in Weldox 700E Steel Subjected to High Velocity Impact Using LS-DYNA

Applied Sciences
Analyzing fracture behaviour during high-velocity impacts is critical for designing and developing structures in various scientific and technological fields.
Nikesh Kumar Ojha, Ravindra K. Saxena, Govind Vashishtha, Sumika Chauhan   +3 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Study of Thickness Effect on Fracture Toughness of High Grade Pipeline Steel

MATEC Web of Conferences, 2016
The critical fracture toughness decreases when thickness of specimens increases and stress-strain field in crack tip start changing to plane strain state from plane stress state. In this paper, fracture toughness tests were carried. Based on the analysis
Zhang Hua, Zhang Hong, Zhao Xinwei, Wang Yalong, Li Na   +4 more
doaj   +1 more source

Hot Tensile and Fracture Behavior of 35CrMo Steel at Elevated Temperature and Strain Rate

Metals, 2016
To better understand the tensile deformation and fracture behavior of 35CrMo steel during hot processing, uniaxial tensile tests at elevated temperatures and strain rates were performed.
Zhengbing Xiao, Yuanchun Huang, Hui Liu, Sanxing Wang   +3 more
doaj   +1 more source

Metallurgical characterization of the fracture of several high strength aluminum alloys [PDF]

The fracture behavior for structural aluminum alloys (2024, 6061, 7075, and 7178) was examined in selected heat treatments. The investigation included tensile, shear, and precracked notch-bend specimens fractured at ambient temperature under monotonic ...
Bhandarkar, M. D., Lisagor, W. B.
core   +1 more source

Dynamic ductile to brittle transition in a one-dimensional model of viscoplasticity

, 1998
We study two closely related, nonlinear models of a viscoplastic solid. These models capture essential features of plasticity over a wide range of strain rates and applied stresses.
A. N. Stroh, Alexander E. Lobkovsky, C. B. Bucknall, E. B. Glennie, F. A. McClintock, J. R. Rice, J. S. Langer, L. B. Freund, L. B. Freund, M. Barber, M. F. Ashby, M. Marder, P. A. Mataga, T. Vu-Khahn   +13 more
core   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

Advanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan, Jack Keddie, Byoungyoul Park, Hyun‐Joong Chung   +3 more
wiley   +1 more source

Investigations on strength of piping for non-condensable gas combustion (Part 3: Estimation of fracture strain of steel pipes subjected to hydrogen-oxygen detonation)

Nihon Kikai Gakkai ronbunshu, 2015
To assess the integrity of piping under the detonation pressure of accumulated hydrogen-oxygen, the fracture strain of the pipe material must be identified.
Akira NEBU, Koji YAMADA, Koji DOZAKI, Akitaka HIDAKA, Masahiro UCHIDA, Takahiro SONE   +5 more
doaj   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source