NLA Diagnostics (NLAD) is committed to developing and fielding affordable and reliable field portable test equipment to determine the structural health of composite materials in multiple failure modes. The NLAD technology can test for manufacturing defects, failures due to cyclic stress, impact damage, heat damage, and other external damage effects that cause delamination and degradation, including surface wave defects.
Extensive testing of complex carbon composites, multiple ply carbon composites and composite bonding to metals has demonstrated a clear need for a nondestructive testing unit that provides multiple capabilities. NLAD has responded to this challenge by conducting extensive research into technologies that complement nonlinear acoustics and has developed the NLA DEFENDER® which is used primarily in the aerospace markets. In 2012 NLAD released an enhanced version of the NLA DEFENDER®.
During the summer of 2012 the company introduced the NLAD Electro Mechanical Impact Hammer (EMIH), which was further refined in 2013. The EMIH combines the sending and receiving functions into one handheld unit that greatly simplifies the user test functions and enables a more consistent impact for the resonance application. This has significantly increased the NLAD detection capabilities and provided the ability to determine far side damage while testing from the near, or exposed, side. (See NLAD Case Study)
NLAD has expanded into the concrete characterization market and began field testing the beta unit in September of last year. The concrete testing technology has both military and commercial applications which are being developed in parallel. The current schedule targets 2017 for market introduction and availability of commercial units.