Volume 36, Issue 2 (March 2013)

    Numerical Methodology to Minimize Resolution and Sensitivity Effects in P-Wave Measurements

    (Received 23 October 2012; accepted 3 December 2012)

    Published Online: 2013

    CODEN: GTJOAD

      Format Pages Price  
    PDF 9 $25   ADD TO CART


    Abstract

    This paper presents a new numerical methodology aiming at facilitating the identification of seismic wave’s propagation time, using a time domain approach. The solution uses first- and second-order differential computing, namely divided differences methods. Results of extensive laboratory seismic wave tests over aggregate–cement mixtures with different voids ratios (densities) and cement contents (1 %, 2 %, 3 %, 4 %, and 5 %) are discussed. The results indicated relevant differences in values of longitudinal modulus (or P-wave modulus) derived with and without this methodology. This was considered especially important in stiff specimens with high-seismic wave velocities and low-energy input signals.


    Author Information:

    Amaral, M. F.
    Univ. of Porto (FEUP), Dept. of Civil Engineering,

    Viana da Fonseca, A.
    Univ. of Porto (FEUP), Dept. of Civil Engineering,

    Rios, S.
    Univ. of Porto (FEUP), Dept. of Civil Engineering,


    Stock #: GTJ20120111

    ISSN: 0149-6115

    DOI: 10.1520/GTJ20120111

    ASTM International is a member of CrossRef.

    Author
    Title Numerical Methodology to Minimize Resolution and Sensitivity Effects in P-Wave Measurements
    Symposium , 0000-00-00
    Committee D18