Results 101 to 110 of about 55,119 (207)

An overlay design method for reflective cracking

open access: yes, 2000
The purpose of this paper is to develop a pavement design method to address reflective cracking using sound mechanistic principles reinforced by practical experience. This paper presents the initial concept of the proposed overlay design method. Test sections have been constructed to assess the effect of overlay thickness, crack width and load to ...
Pais, Jorge C.   +3 more
openaire   +1 more source

Lamb wave defect detection and evaluation using a fully non-contact laser system [PDF]

open access: yes
Traditional Lamb wave structural health monitoring (SHM)/nondestructive evaluation (NDE) system employs contact type transducers such as PZT, ultrasonic transducers, and optical fibers.
Ma, Zhaoyun, Yu, Lingyu
core   +1 more source

Development, fabrication and test of a high purity silica heat shield [PDF]

open access: yes
A highly reflective hyperpure ( 25 ppm ion impurities) slip cast fused silica heat shield material developed for planetary entry probes was successfully scaled up.
Biggs, M. S.   +2 more
core   +1 more source

Sensitivity of the creep-rupture properties of nickel-base superalloy sheet to sharp edge-notches in the temperature range of 1000 deg F - 1400 deg F [PDF]

open access: yes
Edge notch sensitivity in thin sheet nickel alloys under stress at high ...
Freeman, J. W.   +2 more
core   +1 more source

Notched graphite polymimide composites at room and notched graphite polymide composites at room and elevated temperatures [PDF]

open access: yes
The fracture behavior in graphite/polyimide (Gr/PI) Celion 6000/PMR-15 composites was characterized. Emphasis was placed on the correlation between the observed failure modes and the deformation characteristics of center-notched Gr/Pl laminates.
Awerbuch, J.   +2 more
core   +1 more source

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