$('input[name="AR_name"]').append(' <input type="text" class="form-control" id="inputName" name="AR_name" title='value''); code example

Example: boostrap input

<div class="input-group">
  <div class="input-group-prepend">
    <span class="input-group-text" id="">First and last name</span>
  </div>
  <input type="text" class="form-control">
  <input type="text" class="form-control">
</div>