Results 61 to 70 of about 3,514,101 (170)

Tuning PMMA/ABS Blends Compatibilized With SAN‐g‐Epoxy and SAN‐g‐MA: Evolution of Mechanical, Thermomechanical, Optical Performance, and Morphology

Polymers for Advanced Technologies, Volume 37, Issue 7, July 2026.
ABSTRACT Poly(methyl methacrylate) (PMMA) exhibits high transparency and stiffness but suffers from intrinsic brittleness. Although PMMA/acrylonitrile–butadiene–styrene (ABS) blends have been explored for toughening, there remains a lack of systematic understanding of how different compatibilization strategies affect the balance between mechanical ...
Clara Maria Marinho Serafim, João Vitor Souto de Araújo Queiroz, Carlos Bruno Barreto Luna, Emanuel Pereira do Nascimento, Danilo Diniz Siqueira, Renate Maria Ramos Wellen, Edcleide Maria Araújo   +6 more
wiley   +1 more source

Processability and Crosslink Density: Role of Peptizers in Natural Rubber and Chlorobutyl Rubber

Journal of Applied Polymer Science, Volume 143, Issue 22, June 10, 2026.
This work evaluates how chemical and physical peptizers affect mastication, vulcanization behavior, and network formation in natural rubber and chlorobutyl rubber. Size‐exclusion chromatography, rheometry, DSC, and swelling analyses demonstrate improved processability but reduced crosslink density with peptizer addition.
Amanda F. Baruel, Sérgio L. G. Petroni, Sandra A. C. de Mello, Jorge C. N. Dutra, Silvana N. Cassu   +4 more
wiley   +1 more source

Comparative Numerical Analysis of Indirect Tensile Strength Assessment Methods in Rock Engineering [PDF]

Analytical and Numerical Methods in Mining Engineering
This study presents an in-depth comparative numerical analysis of three distinct methods employed to evaluate the indirect tensile strength of rock materials: the Brazilian Tensile Test (BT), the Three-Point Bending Test (TPBT), and the Four-Point ...
Hadi Fattahi, Hossein Ghaedi, Abolfazl Faghihi   +2 more
doaj   +1 more source

Electrodynamic Fragmentation as Treatment Prior to Concrete Comminution

Chemical Engineering &Technology, Volume 49, Issue 6, June 2026.
This study evaluates electrodynamic fragmentation (EDF) as a pretreatment for concrete recycling. Two concretes were exposed to increasing energy levels. Intermediate and high energies reduced up to 60% concrete strength and caused fragmentation in nearly half the samples, without increasing porosity.
Tatiane I. Hentges, Margarita Mezzetti, Christine Hecker, Oleg Popov, Pierre Landgraf, Sérgio C. Angulo, Luís M. Tavares, Holger Lieberwirth   +7 more
wiley   +1 more source

Bond Strength of composite CFRP reinforcing bars in timber [PDF]

, 2015
The use of near-surface mounted (NSM) fibre-reinforced polymer (FRP) bars is an interesting method for increasing the shear and flexural strength of existing timber members.
Luca Righetti, Antonio Borri, Borri, Antonio, Marco Corradi, Corradi, Marco, Righetti, Luca   +5 more
core   +1 more source

Calculation Derivation and Test Verification of Indirect Tensile Strength of Asphalt Pavement Interlayers at Low Temperatures

, 2021
When the direct tensile test is adopted to determine the interlayer tensile strength of the asphalt pavements, specimen separation or internal cracking often occurs at the bonding area of the loading head, rather than at the interlaminar bonding ...
Yiheng Xu, Zhao Ma, Qian Zhang, Zhihe Fang   +3 more
core   +1 more source

MODELING THE DIRECT TENSILE STRENGTH FOR LIGNITE EXTRACTED AT U.M.C. PESTEANA USING THE FINITE-DISCRETE ELEMENT METHOD (FDEM) [PDF]

Fiabilitate şi Durabilitate
In rock mechanics labs, the tensile strength test is carried out by either direct or indirect methods. Among indirect test methods, the most common is a diametrical compression on a disk specimen, also known as the Brazilian Tensile Strength (BTS) test.
Laura COJANU, Manuel-Ionut DRAICA, Constantin BRINAS, Radu MISCHIE, Florin D. POPESCU, Andrei ANDRAS   +5 more
doaj  

Strain Rate Dependent Ductile-to-Brittle Transition of Graphite Platelet Reinforced Vinyl Ester Nanocomposites

Advances in Materials Science and Engineering, 2014
In previous research, the fractal dimensions of fractured surfaces of vinyl ester based nanocomposites were estimated applying classical method on 3D digital microscopic images.
Brahmananda Pramanik, P. Raju Mantena
doaj   +1 more source

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 426-445, June 2026.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +1 more source

Riparian Restoration Improves Physical Habitat but Not Ecosystem Functioning to Reference Levels in Urban Neotropical Streams

International Review of Hydrobiology, Volume 111, Issue 1, June 2026.
ABSTRACT Urbanization modifies stream ecosystems through changes in land use and water quality, with particularly understudied effects in tropical regions. This study evaluates how the conservation status (reference, restored, and impacted) influences nutrient enrichment and organic matter decomposition—key indicators of ecosystem function—across five ...
José Antonio Calvetty Ayllón, Björn Gücker, Davi Gasparini Fernandes Cunha   +2 more
wiley   +1 more source