Deep Penetration Into Frictional Ductile And Brittle Materials

Jeng, Fu Shu; Einstein, Herbert H.; Whittle, Andrew J.; Germaine, John T.

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

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Deep Penetration Into Frictional Ductile And Brittle Materials

1992
By Jeng, Fu Shu ; Einstein, Herbert H. ; Whittle, Andrew J. ; ...
Series: [Report] ; MITSG 92-7

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Personal Author:

Jeng, Fu Shu ; Einstein, Herbert H. ; Whittle, Andrew J. ; Germaine, John T.

Jeng, Fu Shu ; Einstein, Herbert H. ; Whittle, Andrew J. ; Germaine, John T. Less -
Corporate Authors:

Massachusetts Institute of Technology. ; National Sea Grant Program (U.S.),

Massachusetts Institute of Technology. ; National Sea Grant Program (U.S.), Less -
NOAA Program & Office:

Sea Grant ; OAR (Oceanic and Atmospheric Research)

Sea Grant ; OAR (Oceanic and Atmospheric Research) Less -
Sea Grant Program:

MIT (MIT Sea Grant)
Description:

The mooring of offshore platforms and tension piles may involve deep penetration into rocks. This research was intended to study the phenomena and mechanisms of deep penetration, first through experimentation and then, based on the experimental results, by developing models for frictional, ductile/brittle materials. Penetration and pullout tests were performed under varying conditions including brittleness of the material, confining conditions, joint conditions (orientation and spacing), nose shape of penetrator and penetration velocity. By measuring the acceleration history in rapid penetration tests, the energy required to achieve a particular penetration depth was obtained. Through comparison with the results of slow penetration tests, it was also possible to assess the effect of penetration rate. In the modelling effort, the Strain Path Method (SPM) was used to analyze the deep penetration problem. The resultant model for a brittle material was validated by comparing the prediction to the experimental results.
Keywords:

[+]

Penetration mechanics
Series:

[Report] ; MITSG 92-7
Sea Grant Document Number:

MIT-T-92-001
Document Type:

Technical Report
Funding:

Grant no. NA86AA-D-SG089
Rights Information:

Public Domain
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Library
Main Document Checksum:

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urn:sha256:e91ce1706723de1462564504ff5cda4750c5f3431bd4c2a5d668d079ed16b6bd
Download URL:

https://repository.library.noaa.gov/view/noaa/41772/noaa_41772_DS1.pdf
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Deep Penetration Into Frictional Ductile And Brittle Materials

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