Results 81 to 90 of about 749,971 (303)

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Comparison of resin push-out strength to root dentin of bovine- and human-teeth

Indian Journal of Dental Research, 2009
Aim : To compare the push-out strength of bovine- and human-root dentin and, thus, evaluate the suitability of bovine-root dentin to substitute human-root dentin for bond strength testing.
Galhano Graziela, de Melo Renata, Valandro Luiz, Bottino Marco   +3 more
doaj  

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

Advanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon, Jordan Noronha, Justin Dirrenberger, Andrey Molotnikov   +3 more
wiley   +1 more source

Push-Out Tests on Various Steel Anchors with Partial-Length Welding in Steel–Concrete Composite Members

Applied Sciences, 2020
To investigate the behavior of various steel anchors, push-out tests were performed for 13 test specimens. Test parameters included the geometry of beams (wide-flange beams and composite beams) and the type of steel anchors (stud anchors and Z- and C ...
In-Rak Choi, Chang-Soo Kim
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Tractor Testing; PTO Test; Jeep

, 1949
"Willys Jeep being tested at Nebraska Tractor Test Laboratory." Willys-Overland Motors Jeep CJ-3A Universal is shown inside the tractor test lab. After WWII, with many jeeps being surplus and a lack of tractors, the Jeep as well as the Dodge Power wagon ...
Nebraska Tractor Test Laboratory
core  

Push-out test of eco-friendly steel-concrete–steel composite sections enhanced by polypropylene fibers: An experimental study and statistical analysis

Results in Engineering
Steel-concrete-steel (SCS) structural element solutions are rising due to their advantages over conventional reinforced concrete in terms of cost and strength.
Sawsan Akram Hassan, Ammar N. Hanoon, Ali A. Abdulhameed   +2 more
doaj   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Experimental Investigations on Tensile and Shear Behavior of the Interface Between UHP-ECC and Concrete

International Journal of Concrete Structures and Materials
Ultra-high performance engineered cementitious composite (UHP-ECC), which is known for its exceptional compressive strength, tensile strength, and ductility, has been emerged as a promising option for repairing and strengthening reinforced concrete (RC ...
Jun-Jie Zeng, Xin-Chao Lin, Sheng-Zhao Feng, Jiong-Yi Zhu, Yan Zhuge, Yihang Yan   +5 more
doaj   +1 more source

The push out bond strength of polydimethylsiloxane endodontic sealers to dentin

BMC Oral Health, 2019
Background The purpose of this experiment was to assess the push out bond strength of Polydimethylsiloxane sealers (GuttaFlow 2 and GuttaFlow Bioseal by Colte’ne/Whaledent, Altstätten, Switzerland).
Kinley Dem, Yingfang Wu, Atipatsa Chiwanda Kaminga, Zhuo Dai, Xin Cao, Bingyu Zhu   +5 more
doaj   +1 more source