Impact Energy Absorption of Thin-Walled Cylinders with Ribs

Adachi, Tadaharu; Takemoto, Tsuyoshi; Araki, Wakako; Yamaji, Akihiko

doi:10.2472/jsms.53.241

Cited by 5 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The specimen was compressed dynamically using a drop-weight testing machine and measurement system developed by one of the authors, (Ujihashi et al, 1993), (Adachi et al, 2004(Adachi et al, , 2008, (Sastranegara et al, 2005), (Nakamoto et al, 2009), (Higuchi et al, 2012) as shown in Fig. 4.…”

Section: Methodsmentioning

confidence: 99%

Energy absorption of thin-walled cylinders filled with silicone rubber subjected to low-velocity impact

Adachi

Ozawa

Hardi

et al. 2017

Mechanical Engineering Journal

Self Cite

View full text Add to dashboard Cite

In this paper, the effects of subjecting a thin-walled cylinder filled with silicone rubber to low-velocity impact on energy absorption were clarified on the basis of the results of drop weight testing and theoretical analysis. Aluminum alloy cylinders filled with silicone rubber with different hardnesses were prepared as specimens for the drop weight testing with an impact velocity of up to 5.5 m/s to measure the impact load-deformation relation. The analysis was conducted with elastic-perfectly plastic solid mechanics. The absorbed energy per unit deformation, namely the average load, was found to increase significantly due to filling the cylinders with rubber since the plastic deformation occurred in the whole cylinder due to radial expansion of the rubber during dynamic compression. The average load of the filled specimen was more than double that of the empty cylinder. Even though the cylinder fractured after the impact energy exceeded the capacity of the cylinder, high strength rubber could be utilized to support the impact load as a fail-safe. Therefore, it was clarified that the rubber inside the thin-walled cylinder contributed to increase the energy absorption and support the impact load as a fail-safe after the cylinder fractured.

show abstract

Section: Methodsmentioning

confidence: 99%

Energy absorption of thin-walled cylinders filled with silicone rubber subjected to low-velocity impact

Adachi

Ozawa

Hardi

et al. 2017

Mechanical Engineering Journal

Self Cite

View full text Add to dashboard Cite

show abstract

Force reconstruction for low velocity impacts using force and acceleration measurements

Zhang

Sharf

2010

Journal of Vibration and Control

View full text Add to dashboard Cite

Contact and impact dynamics modeling of rigid bodies continues to be an intensive research area, as new applications of contact dynamics simulation develop in engineering practice. Yet, relatively few studies are dedicated to the experimental investigation of rigid-body impacts and associated issues. In this manuscript we report our findings for a sphere to flat impact experiments conducted for a range of low impact velocities, such as those that may be encountered in multibody systems. A unique feature of our investigation is that the impact forces between the impacting objects are reconstructed from force and acceleration measurements, the latter obtained from an accelerometer mounted on the impacted surface body. It is noted that when the impacted body is free to move during impact, it may experience high accelerations which must be taken into account. The reconstructed impact force responses are compared to those predicted with the dynamics model of the experimental scenario, which in turn is based on a nonlinear compliant model of the impact force. The experiments, in addition to generating novel impact measurements, provide a number of insights into both the study of impacts and the impact response.

show abstract

Study of Energy Absorption Efficiency for a Few Thin-walled Tubes in Axial Crushing

Umeda

Mimura

Morisaka

2010

JMMP

View full text Add to dashboard Cite

With a view to examine the axial crushing behavior of thin-walled structures, which are used as energy-absorbing components of transports under various dynamic compressive loads, some thin-walled circular and regular polygonal tubes were investigated mainly by the FEM simulation. The former examination was focused on the effects of the reinforcement with circular ribs placed at regular intervals in the axial direction and the moderation of load undulations due to corrugated pattern on the load-displacement relation. On the other hand, the latter examination was focused on the effects of the shape of cross section (the number of apexes and the thickness). The absorbed energy per unit volume and some indexes of efficiency were used for the examination of those axially crushing tubes. Especially, the effective range of the interval between ribs, the aspect ratio of rib, the dimensions of corrugation, and the number of apexes were primarily discussed from the view point of the comprehensive efficiency which laid emphasis on the absorbed energy per unit volume. of thin-walled tubes, the absorbed energy per unit volume was evaluated together with some indexes of efficiency through the simulations.

show abstract

Impact Energy Absorption of Thin-Walled Cylinders with Ribs

Cited by 5 publications

References 0 publications

Energy absorption of thin-walled cylinders filled with silicone rubber subjected to low-velocity impact

Energy absorption of thin-walled cylinders filled with silicone rubber subjected to low-velocity impact

Force reconstruction for low velocity impacts using force and acceleration measurements

Study of Energy Absorption Efficiency for a Few Thin-walled Tubes in Axial Crushing

Contact Info

Product

Resources

About