Results 91 to 100 of about 5,268 (261)

Subgrade Resilient Modulus for Pavement Design and Evaluation

open access: yes, 1993
The main goal of this study was to develop a set of testing procedures for resilient modulus and to provide a set of resilient modulus data on typical Indiana soils. Soils tested were five cohesive soils and one granular soil. Resilient modulus tests were performed in the laboratory on a fully automated repeated-load axle triaxial equipment according ...
Woojin Lee, Nihal Bohra, A. Altschaeffl
openaire   +3 more sources

Strain‐Activated Mechanical Metamaterial With Programmable Dual‐Phase Stiffness and Enhanced Energy Absorption

open access: yesAdvanced Materials Technologies, EarlyView.
A strain‐activated mechanical metamaterial is developed to achieve programmable dual‐phase stiffness through an intrinsic geometric locking mechanism. Finite element modeling and parametric analysis identify the key design parameters governing activation strain, stiffness transition, and energy absorption.
Ramin Yousefi‐Nooraie   +3 more
wiley   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

Simultaneous determination of cement stabilized macadam’s dynamic resilient modulus in compression and tension by bending beam test

open access: yesCase Studies in Construction Materials
Accurately determining the modulus of cement stabilized macadam is a crucial and essential task for effectively calculating the mechanical response or evaluating the performance of semi-rigid asphalt pavement.
Jun Zhang   +3 more
doaj   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

open access: yesAdvanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu   +5 more
wiley   +1 more source

Effect of wetting and drying cycles on resilient modulus and microstructure characteristics of heterogeneous quicklime-stabilized subgrade

open access: yesCase Studies in Construction Materials
The resilient modulus changes due to post-compaction seasonal variations in weather such as wetting and drying, thus affecting pavement performance. Existing research highlights significant differences in back-calculated resilient modulus test outcomes ...
Richmond Owusu   +2 more
doaj   +1 more source

Prediction Models for Evaluating Resilient Modulus of Stabilized Aggregate Bases in Wet and Dry Alternating Environments: ANN and GEP Approaches. [PDF]

open access: yesMaterials (Basel), 2022
Khan K   +9 more
europepmc   +1 more source

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