The phrase "ad hoc elements" is correct and usable in written English.
It can be used to refer to components or factors that are created or applied for a specific purpose or situation, often in a temporary or improvised manner.
Example: "The committee decided to include several ad hoc elements in the project to address the unique challenges that arose during the planning phase."
Alternatives: "temporary components" or "specific factors".
A number of problems are studied by the developed finite element models and comparisons with other ad hoc element models are presented.
On the other hand, the EMD algorithm contains heuristic and ad-hoc elements that make it hard to analyze mathematically.
During his first term in office, the Washington Post concluded, "Obama has institutionalized the highly classified practice of targeted killing, transforming ad-hoc elements into a counterterrorism infrastructure capable of sustaining a seemingly permanent war".
The ad hoc finite element method is used to investigate the problem of a single rectangular or diamond inclusion in isotropic materials under longitudinal tension.
Optimization of the hysteretic damping capacity of carbon nanotube (CNT) nanocomposites is carried out via a differential evolution algorithm coupled with an ad hoc finite element implementation of a nonlinear 3D mesoscale theory.
As applications, the present ad hoc finite element method is extended to discuss the inplane singular elastic field problems of a single rectangular or diamond inclusion in anisotropic materials and of two interacting rectangular inclusions in isotropic materials.
The high nonlinear behaviour of masonry material requires ad hoc refined finite element numerical models, whose complexity and computational cost are generally unsuitable for practical applications.
This method has been validated against results from literature and from ad hoc formulated finite element models and then adopted to study a continuous beam over three supports.
The super element is finally incorporated with standard four-node hybrid-stress elements to constitute an ad hoc hybrid-stress finite element method for the analysis of local singular stress fields arising from inclusion corners.
