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SI: Russian mechanics contributions for Structural Integrity Views: 64 Downloads: 22 Vol. 20, No. 77 (2026) May 21, 2026 pp. 281-297

Effect of ultrasonic welding conditions and energy director thickness on structure and properties of lap-joints of PEEK-based composites reinforced with short carbon fibers

Sergey Panin, Vladislav Alexenko, Alexey Zelenkov, Dmitry Buslovich, Lyudmila Kornienko, Shaowei Lu

The aim of this study was to investigate the effect of thickness of energy director (EDs) and ultrasonic welding (USW) process parameters on structure formation and interlaminar shear strength (LSS) values of lap-joints of composite…

10.3221/IGF-ESIS.77.17

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SI: Russian mechanics contributions for Structural Integrity Views: 371 Downloads: 270 Vol. 20, No. 75 (2026) November 12, 2025 pp. 315-325

The effect of energy director on ultrasonic consolidation of multilayered composites (laminates) made from unidirectional PEEK/CF prepregs

Sergey Panin, Vladislav Alexenko

The study aims at assessing the effects of the ultrasonic consolidation parameters and the insertion of energy directors from the commercially available polyetheretherketone film ~250 µm thick on the structure and mechanical properties of…

10.3221/IGF-ESIS.75.22

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Environmentally Assisted Fracture Views: 1,641 Downloads: 1,442 Vol. 16, No. 61 (2022) June 19, 2022 pp. 20-45

Review of Current Developments on High Strength Pipeline Steels for HIC Inducing Service

Ehsan Entezari, Jorge Luis González-Velázquez, Diego Rivas López, Manuel Alejandro Beltrán Zúñiga, Jerzy A. Szpunar

Nowadays, an increasing number of oil and gas transmission pipes are constructed with high-strength low alloy steels (HSLA); however, many of these pipelines suffer from different types of hydrogen damages, such as hydrogen-induced…

10.3221/IGF-ESIS.61.02

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SI: Russian mechanics contributions for Structural Integrity Views: 793 Downloads: 969 Vol. 18, No. 68 (2024) March 15, 2024 pp. 390-409

Ultrasonic welding of lap joints of PEI plates with PEI/CF-fabric prepregs

Vladislav Alexenko, Defang Tian, Sergey Panin, Svetlana Bochkareva, Iliya Panov

In this study, ultrasonic welding (USW) of lap joints of polyetherimide (PEI) plates (adherends) with carbon fiber (CF) prepregs impregnated with PEI was investigated. No energy director (ED) was used, so binder contents were varied in the…

10.3221/IGF-ESIS.68.26

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SI: Fracture and Structural integrity: ten years of F&IS Views: 932 Downloads: 1,211 Vol. 13, No. 47 (2019) December 3, 2018 pp. 266-276

Mechanical and fracture properties of particleboard

Liviu Marsavina, Ion Octavian POP, Emanoil LINUL

Particleboard (PB) are wood-based composites with fine wood fibers bound together by a small amount of polymeric adhesive, widely used in furniture industry and civil engineering. PB plates can be painted, laminated or veneered, and have…

10.3221/IGF-ESIS.47.20

Details: Mechanical and fracture properties of particleboard PDF Visual Abstract

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Effect of ultrasonic welding conditions and energy director thickness on structure and properties of lap-joints of PEEK-based composites reinforced with short carbon fibers

The effect of energy director on ultrasonic consolidation of multilayered composites (laminates) made from unidirectional PEEK/CF prepregs

Review of Current Developments on High Strength Pipeline Steels for HIC Inducing Service

Ultrasonic welding of lap joints of PEI plates with PEI/CF-fabric prepregs

Mechanical and fracture properties of particleboard